Create A Rainbow With A Glass Of Water
There is a simpler way to make a rainbow.
To get ready - place the glass on a white piece of paper . Take a piece of paper and cut a slot into the middle of the flashlight. Open the flashlight and let the light goes through a glass of water, making sure the light are shining onto the surface of the water. You should see the rainbow falling on the white paper.

This game uses the principle of reflection of light. When the light passes through a glass prism, it seperates into its spectrum of seven colors.
Have your child make rainbow easily and describe colours.